<template>
  <div class="about">
    <el-container>
      <el-header>
        <el-menu
          :default-active="activeIndex2"
          class="el-menu-demo"
          mode="horizontal"
          @select="handleSelect"
          background-color="#545c64"
          text-color="#fff"
          active-text-color="#ffd04b">
          <el-menu-item index="1">处理中心</el-menu-item>
          <el-submenu index="2">
            <template slot="title">我的工作台</template>
            <el-menu-item index="2-1">选项1</el-menu-item>
            <el-menu-item index="2-2">选项2</el-menu-item>
            <el-menu-item index="2-3">选项3</el-menu-item>
            <el-submenu index="2-4">
              <template slot="title">选项4</template>
              <el-menu-item index="2-4-1">选项1</el-menu-item>
              <el-menu-item index="2-4-2">选项2</el-menu-item>
              <el-menu-item index="2-4-3">选项3</el-menu-item>
            </el-submenu>
          </el-submenu>
          <el-menu-item index="3" disabled>消息中心</el-menu-item>
          <el-menu-item index="4"><a href="https://www.ele.me" target="_blank">订单管理</a></el-menu-item>
        </el-menu>
      </el-header>
      <el-container>
        <el-aside width="200px">
        </el-aside>
        <el-main>Main</el-main>
      </el-container>
      <el-container>
        <el-footer>Footer</el-footer>
      </el-container>
    </el-container>
  </div>
</template>
<script>
export default {
  data () {
    return {
      activeIndex: '1',
      activeIndex2: '1'
    }
  },
  methods: {
    handleSelect (key, keyPath) {
      console.log(key, keyPath)
    },
    handleOpen (key, keyPath) {
      console.log(key, keyPath)
    },
    handleClose (key, keyPath) {
      console.log(key, keyPath)
    }
  }
}
</script>
<style>
.el-header, .el-footer {
  background-color: #B3C0D1;
  color: #333;
  text-align: center;
  line-height: 60px;
  padding: 0;
  margin: 0;
}

.el-aside {
  background-color: #D3DCE6;
  color: #333;
  text-align: center;

}

.el-main {
  background-color: #E9EEF3;
  color: #333;
  text-align: center;
  line-height: 800px;
}

body > .el-container {
  margin-bottom: 40px;
  padding: 0;
  margin: 0;
}

.el-container:nth-child(5) .el-aside,
.el-container:nth-child(6) .el-aside {
  line-height: 260px;
}

.el-container:nth-child(7) .el-aside {
  line-height: 320px;
}
</style>
